Records for Great Falls Area, Montana (GTFthr) on 04-18
  Record Highs
  
    - 
      1:  86°F (1936)
    
- 
      2:  80°F (1915)
    
- 
      3:  79°F (1949)
    
 
  Record Lows
  
    - 
      1:  6°F (1951)
    
- 
      2:  17°F (1953)
    
- 
      3:  18°F (1966)
    
 
  Lowest Highs
  
    - 
      1:  51°F (1938)
    
- 
      2:  50°F (1952)
    
- 
      3:  50°F (1923)
    
 
  Highest Lows
  
    - 
      1:  27°F (1966)
    
- 
      2:  33°F (1941)
    
- 
      3:  34°F (1896)
    
 
  Highest April temperature:
  
  89°F on 04-20-1980.
  Lowest April temperature:
  
  -10°F on 04-02-1936.
  Average temperature is 46.4°F
  Average high is 59.1°F
  Average low is 33.8°F
 
  Temperature data from 1891 to 2022.
  Record Precipitation
  
    - 
      1:  1.22" (1993)
    
- 
      2:  0.82" (2007)
    
- 
      3:  0.48" (1898)
    
 
  Precipitation data from 1891 to 2022.